I'm looking for a similar feature to use with the US region map where the states that my company has defined as making up the "West Region" for example are different.
Perhaps as a future enhancement users could define their own "Custom US Regions" map by defining a combination of "state id's". Maybe this would be more easily done by starting with the "Regular US Map" since all the states are already defined individually. Once combined into a region then the attributes would be applied to the region instead of the individual state entities.
I'm sure you get the idea ...